Same here. I fill out the form, I check the box. It correctly times out if I don’t submit in x time, but the submit button does nothing.
The ID for form and submit button appear correct. I have theme twenty fourteen.
I figured since its not working, I’d try sliding the javascript output mode for old themes. No luck.
I also tried to change the ajaxResponse.statusText like was suggested for chrome having this issue to no luck.
Current January 2020 version of opera and firefox. NOTE/REMEMBER, the recaptia seems to work, but the submit button isn’t
I do see that the plugin “has not been tested on my version of wordpress”
WordPress 5.3.2 running Twenty Fourteen theme.
I have installed “Advanced noCaptcha & invisible Captcha” and it is working great.